转录组研究探讨了污染物和乳腺癌攻击性之间的机制
Louise Benoit1,2,3,4, German Cano-Sancho5, Céline Tomkiewicz6
1Inserm UMR-S 1124, T3S, Toxicologie Environnementale, Cibles thérapeutiques, Signalisation cellulaire et Biomarqueurs, Paris, France. louise.am.benoit@gmail.com.
Scientific reports
|November 25, 2025
概括
持久性有机污染物 (POPs) 可能通过改变瘤生物学来驱动侵袭性乳腺癌 (BC). 这项研究发现,POP暴露与与BC进展和转移相关的基因和途径的变化有关.
科学领域:
- 环境健康 环境健康
- 在瘤学瘤学.
- 分子生物学分子生物学
背景情况:
- 乳腺癌 (BC) 是女性癌症死亡的主要原因,转移是主要的驱动因素.
- 持久性有机污染物 (POP) 是环境污染物,被怀疑会影响BC的攻击性,但根本机制尚未完全理解.
研究的目的:
- 调查暴露于各种持久性有机污染物 (POP) 和乳腺癌进展之间的关联.
- 识别与BC攻击性相关的受POP暴露影响的特定基因和生物通路.
主要方法:
- 从89名BC患者 (METAPOP队列) 的瘤样本分析了42种类型的POP,包括二氧化物,PCB和PBDE.
- 转录组分析使用RNA测序来识别与POPs和BC特征 (瘤大小,转移风险,淋巴结参与,ER状态) 相关的差异表达基因.
主要成果:
- 对雌激素受体 (ER) 状态 (4931 个基因),瘤大小 (283 个基因) 和转移 (99 个基因) 观察到显著的基因表达差异.
- 与POP暴露和BC攻击性相关的丰富途径包括免疫反应,细胞外矩阵重塑和细胞循环调节.
- 基因组丰富分析显示,细胞周期,免疫反应和核心BC标志调节途径的实质性重叠.
结论:
- 研究结果表明,POP暴露可以改变瘤生物学,可能促进更具攻击性的乳腺癌表型.
- 这项研究为环境污染物在BC进展中的作用提供了新的见解,并强调需要进一步调查POPs对瘤侵略性的贡献.
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